I'm only up to page 4 of this thread, but this situation creates some real dilemmas for me as a religious Jew.
Circumcision is a barbaric practice and it isn't right that babies don't get a say in what happens to them. Circumcision at an older age would be ideal, where the boy gets to decide for himself.
BUT in Judaism, circumcision is making a covenant between man and G-d and marks the entry of a Jewish boy into his community/the Jewish people. I believe in G-d, so I believe this, despite not liking the practice. If you believe that G-d created the world/people etc, then it's possible to believe that it's something G-d asked Jews to do.
A boy formally enters the Jewish people at 13 with a bar mitzvah and can't do this without a circumcision. I feel that at 13, this still wouldn't be something a boy would get to decide on himself or may face coercion and at 13 it's a more complex procedure with a longer recovery time. As an adult it also takes a long time and is a more complex procedure. Babies heal quickly - initial healing is very quick these days thanks to a new bandage which stops bleeding immediately and heals up overall within days - not a justification, just a fact.
I am sure there are some Jewish boys/men who would have liked to have made the decision for themselves, but having discussed this at length with men who had it done as babies, some of whom are now having babies of their own, they are 100% happy that they had it done. They believe in G-d and believe it marks their covenant with Him and they would have it done now if their parents had decided not to. On the other hand, I appreciate that some men don't agree, but given the further religious implications, it makes most sense to circumcise as we do now, 8 days after a baby is born.
I am also comforted by the fact that many ritual circumcisers (did I just make up that word? I.e. people who perform the procedure) are trained doctors from many different medical backgrounds such as paediatrics, eye surgery and GPs with other additional medical strings to their bow. They all believe in the practice and see no medical/ethical dilemmas, just that they are maintaining the practice of this age old covenant with G-d, which they perform with the utmost of care for the babies and with the highest standards.
I don't like it, but thinking through all of the ifs, whens and buts, I have to accept religiously that the best solution is to maintain the status quo. Banning it is only going to create more problems.